Oil pan for internal-combustion engines



Dec. 11 1923. 1,477,016

w. SPEARS OIL PAN FOR INTERNAL comausu-xou ENGINES Filed June 12. 192 2 :EIE-l E J C? anvwl'oz ZZZ/62019973 Mowfgo Patented Dec. 11, 1923.

PATENT QFFICE.

WILLIAM: SPEARS, OF GOLDEN, COLORADO.

OIL PAN IFQR INTERNAL-COMBUSTION ENGINES.

Application filed June 12, 1922,. Serial No. 567,840.

I '0 all whom it may, concern Be it known that I, WILLIAM SPEARS, a citizen of the United States, residin at Golden, in the county oi Jefferson and tate of Colorado, have invented certain new and useful Improvements in Oil Pans for InternaLCombustion Engines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to an improved oil pan for internal combustion engines and one object of the invention is to provide the oil pan with means for retarding the flow of lubricating oil longitudinally of the pan. In an internal combustion engine of the splash teed type used upon Ford automobiles, the oil is conveyed from the oil reservoir at the rear of the crank case and deposited in a pipe which carries it forwardly to the timing gear train. 4 The oil after being projected upon the timing gear train drops downwardly into the crank case. As the oil moves rearwardly of the crank case to the oil reservoir, this oil passes over the oil pan which closes an opening formed in the bottom of the crank case and fills troughs or pockets into which the connecting rods dip when the motor is in operation, and the crank shaft turning over. It has been found that when going up hill, the oil in these troughs or pockets carried by the oil pan will have a tendency to move rearwardly out of these pockets thereby leaving the forward connecting rods and bearings unlubricated. In the same way, when going down hill, the oil has a tendency gather in the forward end portion of the crank case, thus causing excessive lubrication. In the present illustration, the oil pan has been shown provided with a bridge or bafile plate which is secured to the oil pan between certain of the pockets or troughs and serving to prevent the oil from flowing rearwardly beyond a desired amount and also serving to prevent oil in the oil reservoir from flowing forwardly into the forward end portion of the crank case. Therefore, the forward bearings and connecting rods will be properly lubricated when going up or down hill, the same as they are when the machine is traveling on a level.

This invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a view showing a motor principally in side elevation and partially in longitudinal section and showing the oil pan provided with the oil retarding bridge or batlie plate.

Figure 2 is an enlarged transverse sectional view takenalong the line 2-2 of Fig. l.

Figure 3 is a perspective view of the batfle plate or bridge which is to be secured to the oil pan. i

The internal combustion engine which is indicated in general by the letter E is of a conventional construction and provided with the crank case 0 having the customary opening formed in its bottom or underportion as shown in Figs. 1 and 2. This opening is provided with the usual bordering strip S having threaded openings formed therein to receive the bolts B which serve to secure the oil pan 1? to the under'lace of the crank case. This oil pan is provided with the usual oil troughs or pockets P and in a tour cylinder motor will be three in number. As previously explained, the oil passes over the oil pan from one trough or pocket to the other and finally passes into the reservoir R. In order to prevent the oil from flowing rearwardly out of the pockets and thus leaving the forward bearings unlubricated and also prevent the oil from flowing for-- wardly and gathering in the forward end portion of the crank case, there has been provided a bridge or battle strip 1 which is formed of heavy sheet metal and provided at its lower end with a side extension or flange 2 having openings 3 formed therein to receive rivets 4- which pass through the oil pan as shown in Fig. 1. At its ends, this bridge or battle plate is provided with extensions or wings 5 which. extend in overlapping relation to the bordering strip S and serves to assist in holding the oil pan in place. When putting the oil pan in place; it is necessary to position it at a suitable angle which will permit the wings or end extensions 5 to pass upwardly through the opening in the bottom of the crank case and then turn the pan to the proper position, in which it covers the opening in the bottom or the crank case and the battle extends transversely of this opening as shown in 2 with the end extensions or wings 5 extendingin overlapping relation to the bordering strip S. The bolts B will then be put in place and when tightened, will serve to securely hold the oil pan in place. From an inspection of Fig. 1, it will be readily seen that when going up or down hill, the oil which will have a tendency to flow l-ongitudinally of the oil pan will strike the battle and be retarded in its flow. Therefore, the oil will be prevented from mov ing out of a position in which the connecting rods can dip into the oil.

Although only one battle plate has been shown, itis to be understood that additional onescan be provided if found desirable.

I claim:

1. A crank case oil pan having oil pockets, and a bafile plate extending transversely of the oil pan between the oil pockets and having its lower end portion secured to the oil pan between the oil pockets, the end portions of said baffle being extended to overlie portions of a crank case at the sides of an opening closed by said oil pan and support the pan while fasteners for the pan are put in place.

2. A crank case oil pan, and means extending from the inner face of the pan for engaging the inner .ihtt (it h ('lhllh (ash and suspending sad pan ham the tfl'thit the while fasteners for the pan are put in place.

3. A crank case oil pan, and means for suspending said pan from a crank case while fasteners for the pan are put in place, said means serving as battle means to retard flow of oil, longitudinally of said pan when the pan is secured to said crank case.

4. A crank case having, an opening formed therein, an oil pan for closing said opening. removable fasteners for securing, said pan to said crank case, and means carried by said pan for engaging said crank case and supporting the pan beneath the crank ease during placing of said fasteners.

5. A crank case having an opening formed therein, an oil pan for closing said opening, removable fasteners for securing said pan to said crank case, and means carried by said pan for engaging said crank case and supporting the pan beneath the crank case during placing of said fasteners, said means being in the form of a bafiie plate extending: transversely of said pan to retard flow of oil longitudinally thereof, the end portions of said ballie plate being extended in spaced relation to the sides of the pan to overlie the crank case at the sides of the opening therein Zlhll suspend the an lhllttltll the rank t'tlSh.

In testimony whereof I hereunto allix my signature.

lVILLIAM SPEARS. 

